Ray Collins vs. Michael Kopech — Career Comparison

On the career pitching numbers, Ray Collins posted a stronger line than Michael Kopech. Ray Collins posted stronger numbers in ERA (2.51 vs 4.14) and WHIP (1.134 vs 1.333). By the career numbers, Ray Collins had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.